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铝合金板冲压成形Benchmark试验与有限元仿真
引用本文:闫康康,胡平,郭威. 铝合金板冲压成形Benchmark试验与有限元仿真[J]. 农业机械学报, 2009, 40(11): 232-235
作者姓名:闫康康  胡平  郭威
作者单位:吉林大学汽车工程学院,长春,130025;吉林大学汽车工程学院,长春,130025;大连理工大学汽车工程学院,大连,116024;吉林大学材料科学与工程学院,长春,130025
基金项目:国家杰出青年科学基金资助项目,国家汽车电子产业化重大专项 
摘    要:采用NUMISHEET2002会议提出的杯形件拉深Benchmark试验方案,在不同压边力工况下,对铝合金板6111-T4的拉深性能、各向异性行为、起皱缺陷进行了试验研究.研究表明:各向异性系数小并未对铝合金板的成形性能产生较大影响,通过增大压边力能有效解决起皱问题,铝合金板6111-T4具有良好的冲压成形性能.基于自主研发的冲压成形CAE软件KMAS平台,对Benchmark试验进行了仿真验证,与试验结果对比表明:KMAS软件采用的Barlat-Lian各向异性屈服准则和动力半显式算法能够准确模拟铝合金板的冲压成形.

关 键 词:铝合金板  冲压成形  Benchmark试验  有限元  仿真

Benchmark Test and FEM Simulation of Aluminum Alloy Sheet Forming
Yan Kangkang,Hu Ping,Guo Wei. Benchmark Test and FEM Simulation of Aluminum Alloy Sheet Forming[J]. Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(11): 232-235
Authors:Yan Kangkang  Hu Ping  Guo Wei
Abstract:Adopting the Benchmark test scheme of a cylindrical cup deep drawing proposed by NUMISHEET2002, the deep draw ability, anisotropic behavior and wrinkling of aluminum alloy 6111-T4 sheet were researched under different blank holder force (BHF) conditions. The results show that the formability of aluminum alloy sheet is hardly influenced by small anisotropic coefficient, and wrinkling can be eliminated effectively by increasing BHF, therefore aluminum alloy 6111-T4 sheet has excellent stamping formability. Based on the platform of KMAS, self-developed sheet metal forming CAE software, Benchmark test was simulated, and the results were compared with that of the test. KMAS software, adopting Barlat-Lian anisotropic yield criteria and dynamic semi-explicit algorithm, is able to simulate aluminum alloy sheet forming accurately.
Keywords:Aluminum alloy "  sheet  Sheet metal forming  Benchmark test  Finite elementmethod  Simulation
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